The correct answer is B. Smaller
The senate consists of 2 people per each state, while the number of representatives is chosen according to the national census. The more people the state has, the more representatives it will have, which is why there are now 400+ members of the house of representatives.
Sustainable development
Sustainable development is the organizing principle for meeting human development goals while simultaneously sustaining the ability of natural systems to provide the natural resources and ecosystem services on which the economy and society depend.
C for the first one ( fifth amendment ) & b for the second one ( us constitution )